where can I get hood emblem stickers?

I just wanted to ask if anyone can help me by letting me know where I can find the small stickers that are used for the hood, fender and rear emblems for cars. I am especially looking for Ferrari, Lamborghini, and Porsche stickers. Once I find an Enzo in a department store (target,walmart), I plan on painting a few different colors to coincide with the very few that weren't the normal Red, Yellow, or Black. I have seen on the net a White one in a Ferrari Dealer in Italy, a Silver/Titanium color in France, and a TDF blue in the US. If anyone can point me in the right direction to where I can get these. I would be really appreciate it. Thanks for the help. :cheers